Overview
This series of power supplies is specifically designed for use with compliant fire alarm systems that require additional power for auxiliary equipment connected to the system. The units provide a regulated 27.6VDC output and are available in 1A, 2A, and 5A variants, with two enclosure sizes to accommodate different battery capacities.
In the event of a mains power failure, the PSU automatically transfers to battery operation, ensuring a continuous and uninterrupted power supply. Each unit is supplied in a robust metal enclosure with space for two batteries. Maintenance-free sealed lead-acid batteries are required to provide standby power during mains failure conditions.
Features
- Compliant with EN54-4:1997 +A1 +A2
- 27.6VDC uninterruptible power supply for compliant fire alarm systems
- 1A, 2A, and 5A models available in compact metal enclosures for 7Ah batteries
- 2A and 5A models available in larger metal enclosures for 18Ah batteries
- Green LED indication for mains power status (see Fault Outputs & Diagnostics table)
- Yellow LED indication for fault status (see Fault Outputs & Diagnostics table)
- Amber LED indication for engineer fault diagnostics (see Fault Outputs & Diagnostics table)
- GEN and EPS outputs for remote fault reporting (see Fault Outputs & Diagnostics table)
- Integrated overload and short-circuit protection to safeguard the PCB
- Battery charging current from 500mA to 800mA depending on model (see Specification Chart)
- Deep discharge protection disconnects batteries below 21VDC to prevent damage
- Battery monitoring for low voltage, reverse/incorrect connection, and short-circuit conditions